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netlink: add basic decoding of NETLINK_ROUTE dcbmsg attributes

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* rtnl_dcb.c: Include "netlink.h", "nlattr.h",
and "xlat/rtnl_dcb_attrs.h".
(decode_dcbmsg): Call decode_nlattr.
* xlat/rtnl_dcb_attrs.in: New file.

Co-authored-by: Fabien Siron <fabien.siron@epita.fr>
This commit is contained in:
JingPiao Chen 2017-08-15 12:41:19 +08:00 committed by Dmitry V. Levin
parent a93b5fa242
commit 1c3e1828dc
2 changed files with 30 additions and 1 deletions
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14
rtnl_dcb.c
View File

@ -32,16 +32,20 @@
#ifdef HAVE_STRUCT_DCBMSG
# include "netlink_route.h"
# include "nlattr.h"
# include "print_fields.h"
# include <linux/dcbnl.h>
# include "netlink.h"
# include "xlat/dcb_commands.h"
# include "xlat/rtnl_dcb_attrs.h"
DECL_NETLINK_ROUTE_DECODER(decode_dcbmsg)
{
struct dcbmsg dcb = { .dcb_family = family };
const size_t offset = sizeof(dcb.dcb_family);
size_t offset = sizeof(dcb.dcb_family);
bool decode_nla = false;
PRINT_FIELD_XVAL("{", dcb, dcb_family, addrfams, "AF_???");
@ -52,10 +56,18 @@ DECL_NETLINK_ROUTE_DECODER(decode_dcbmsg)
(void *) &dcb + offset)) {
PRINT_FIELD_XVAL("", dcb, cmd,
dcb_commands, "DCB_CMD_???");
decode_nla = true;
}
} else
tprints("...");
tprints("}");
offset = NLMSG_ALIGN(sizeof(dcb));
if (decode_nla && len > offset) {
tprints(", ");
decode_nlattr(tcp, addr + offset, len - offset,
rtnl_dcb_attrs, "DCB_ATTR_???", NULL, 0, NULL);
}
}
#endif

17
xlat/rtnl_dcb_attrs.in Normal file
View File

@ -0,0 +1,17 @@
DCB_ATTR_UNDEFINED 0
DCB_ATTR_IFNAME 1
DCB_ATTR_STATE 2
DCB_ATTR_PFC_STATE 3
DCB_ATTR_PFC_CFG 4
DCB_ATTR_NUM_TC 5
DCB_ATTR_PG_CFG 6
DCB_ATTR_SET_ALL 7
DCB_ATTR_PERM_HWADDR 8
DCB_ATTR_CAP 9
DCB_ATTR_NUMTCS 10
DCB_ATTR_BCN 11
DCB_ATTR_APP 12
DCB_ATTR_IEEE 13
DCB_ATTR_DCBX 14
DCB_ATTR_FEATCFG 15
DCB_ATTR_CEE 16